The difference is subtle, but it’s there. I believe that once we get our heads around it, we will discover a whole new perspective.

Now let’s have a look at the data we gathered.

Score distribution

These are the scores for all the websites we analyzed:

Interesting findings:

the minimum score to pass the Google Mobile-Friendly Test is 80%

only about 17% of websites scored at 100/100

the most frequent score is 99/100 (~25% of websites have this rating)

the most frequent score for non-mobile friendly websites is 67% (more than 23K websites have this rating)

There are a handful of websites with scores under 50% which are not very visible in our main chart; zooming in:

Common errors

Here is the list of warnings we encountered for our websites:

As we can see, the most common warning is the “Links too close together”. It’s present among more than 77% of websites.

But how do these compare to Passed vs. Failed?

It would be interesting to see if a particular warning has a higher or lower impact on the mobile friendliness.

Voila:

Discoveries:

links too close together doesn’t look like a complete deal-breaker

if your text is too small to read there’s a 95% chance your website is not mobile friendly

similarly, if your mobile viewport is not set there’s a ~88% chance you will fail the Mobile-Friendly Test (what is a viewport?)

content wider than the screen is sometimes acceptable (~54% chance to fail)

even incompatible plugins (like Flash, Java, Silverlight, etc.) are acceptable sometimes (websites like Quora.com, Zillow.com or udemy.com are using incompatible plugins and are still passing the test)

The main author of the Canonicalized content. I am highly passionate about data analysis, visualization and whatever helps people reach informed answers faster. I love what I do, and I am working to improve speed in every aspect of my life. I find comfort in helping people so if you have a question give me a shout!

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